Stoker mechanism



H. P. ANDERSON STOKER MECHANISM Aug. 25, .1936.

2 Sheeis-Sheet 1 Original Filed Dec. 29, 195::

Q Q Q Q Q Q Q Q hu INVENTOR.

Howard .P Amie/"son ATTORNEY.

Aug. 25, 1936. V H. P. ANDERSON 2,051,809

sToKER MECHANISM Original Filed Dec. 29, 19:55 2 Sheets-Shet 2 INVENTOR. [Ya/card f'fl/m erso/z BY w ATTORNEY.

Patented Aug. 25, 1936 UNITED STATES STOKER MECHANISM Howard P. Anderson, Erie, Pa... assignor to The Standard Stoker Company, Incorporated, a corporation of Delaware Application December 29, 1933, Serial No. 704,412 Renewed November 19, 1935 19 Claims.

This invention relates to improvements in locomotive stokers of the type that feed through the lower portion of the firing opening in the boiler backhead.

In stokers of this type it has been customary to provide the forward end of the discharge casing with laterally extending flanges, through which flanges the casing is attached to the boiler backhead by suitable fastening means, as by bolts. Since the slope of the backhead of the different types of locomotives varies, it is obvious that in prior installations a particular form of discharge casing had to be provided for each different style backhead. The present invention obviates the necessity of providing a. number of different forms of discharge casing, permitting the use of a standard discharge casing regardless of the slope of the firebox backwall by providing a novel frame member arranged to be secured to the backhead and arranged to receive a standard discharge casing. This frame member is a relatively simple casting compared to the discharge casing, therefore the frame member is made to suit the slope ofthe backhead permitting the'use of a standard discharge casing.

The novel frame member is made to embrace the entire firing opening and while the lower por-v tion is arranged for attachment with the discharge casing, the upper portion is arranged to receive and forms a support for a firedoor.

The invention further contemplates the provision of a frame member, having an annular plate like portion rigidly secured to the outer sheet of the firebox backwall and. an annular convex flange at its free end attachedto the inner sheet of the firebox backwall, the convex flange portion forming the walls of the firebox firing opening.

Other objects and advantages of the invention reside in the features of construction, the combination of elements and arrangement of parts hereinafter more fully described and claimed and illustrated in the accompanying drawings, in which Fig. 1 is a central longitudinal vertical section of a portion of a locomotive with a stoker therefor showing the invention in place;

Fig. 2 is a view in elevation of the novel frame member;

Fig. 3 is a sectional view on the line 3-3 of Fig. 2;

Fig. 4 is a view similar to the view shown in Fig. 1 of a. modified form of the invention; and

Fig. 5 is a view in elevation of the novel frame member of the modified form of the invention.

In the drawings, the locomotive is indicated generally by the numeral 0 and is provided with a deck II and a fireboxbackwall |2 having a firing opening l3 therein. Fuel is delivered to the firing opening |3 from a tender, not shown, by 5 stoker mechanism, only 'so much of which is shown that is essential to a complete understanding of the invention. 'The part of the Stoking device illustrated comprises a discharge casing M which, as is well understoodjs at the forward end of a series of conduitele'ments leading from the tender.

An annular member I5 overlaps and is secured to the outside of the outer sheet N5 of the backhead l2 by suitable means, as'by staybolts 'n'. 5'

An annular convex flange I8 is formed with and extends inwardly from theinner marginal edge of the annular member I5 and is secured at its free end to the inside of the inner ,sh'eetf-la'of the. backhead' |2 by suitable means, as bystaybolts 20. The convex flange I81 forms a wall joining the inner and'outer sheets. of the back head and defines the firing opening; l3. A flange 40 extends outwardly from the irmer-marginal I edge of the upper half of the annular member I5. 2

A pair of spaced hollowfiange members 2| are formed with the lower half of the annular mem-. ber l5 and extend outwardly therefrom adjacent the innermarginal edge thereof. The outer sur-' faces 22 of the flanges 2| are disposed angularly with respect to the surface of the annularmember IS. The angularityof the flanges 2| ,will depend upon the type and slope of the firebox backwall, of the locomotive in which the stoker v is being installed., By changing the angularity' of 5 the flanges 2| to suit the particular'backhead, thestoker discharge "casing l4 may be of standard form, the one form' ofcasing will then be suitable for any installation. The inner side faces of the flanges 2| are shaped to conform with the contour of the open forward end of the discharge casing 4. The discharge casing I I at its discharge end is provided with the laterally extending-flanges 23 that rest flush against the surface 22 of the 45 flanges 2|. Bosses 24 are formed on the annular member I5 within the hollow flanges 2 Land are provided with threaded openings 25. The dis-. charge casing is rigidly secured to the annular. member |5 by bolts 26 passing through the flanges 5d 23 and threaded in the threaded openings 25. A fuel distributing plate 2|.extends forwardly from the lower wall of the discharge end. of the casing l4 through the lower portion of thespace between the flanges 2| and through the firing is provided with the trunnions 29 from whichiis:

supported the firedoor 3|. The firedoor may be of any suitable conventional type and thepperat ing mechanism therefor may be of suitable conventional type, that shown irrthedrawings being of the well known Franklin Butterfly type.

Figures 4 and 5 show amodified formof the invention, in which, the frame or plate member:

32 comprises top and side portions surrounding corresponding portions of the firing opening 33-; However, it will be obviousv that the frame member 32'may be made to entirely surround the firingopening if. desired, in the manner that the annular plate. l5 of the preferred'form of the invention does. The frame member 32 isprovided with laterally projecting lugs 34 arranged to receive bolts or studs 35 for attaching the frame member 32" rigidly to the firebox backhead 36. Unlike the preferred form of the invention, the frame member is not provided with an annular convex flange forming the walls of the firing opening, but the firing openings walls are formed by the inner and outer sheets .31 and 38; respectively, of "the backhead 36," that are curved inwardly toward each other. In all other structural and functional respects the modified form of the'invention is similar to thepreferred form of the invention;

Iclaim:

1. As an article of manufacture, a frame for a firing opening comprising an annular plate like member, a pair of walled hollow flanges extending outwardly from the'surface of said annular plate adjacent its inner marginal edge and spaced apart a distance sufiicient to receive a fuel feed casing, the face of said 'flanges constituting the free end thereof beingxangularly disposed with respect to the surface of said annular plate like member;

2. As an article of manufacture, .a frame for a firing opening comprising a curvate plate like member, a curved flange. extending outwardly from a portion of the inner marginal edge of said curvate member, and a walled hollow flange extending outwardly from said'curvate member adjacent each of the extremities of.v said curved flange, said walled-hollow flanges being spaced.

free 'end thereof being' angularly disposed with" respect to-"the surface 'ofsaid curvate plate like member."

4. As an articleof 'manufacttn'e, a frame for a flring-openingcomprisinga curvate plate like.

member, a curved" flange ,extending outwardly from a portion of the inner marginal edge of saidcurvate member, a walled hollow flange extending outwardly from said curvate member adjacent each of the extremities of said curved flange, said walled hollow flanges being spaced apart a 5 distance sufiicient to receive a fuel feed casing and a pair of trunnions extending outwardly from said curvate member intermediate the extremitiesof said curved flange.

5. As an article of manufacture, a frame for a 10 firing opening comprising an annular plate like member, a pair of walled hollow flanges extending outwardly from the surface of said annular plate adjacent its inner marginal edge and spaced apart a. distance sufiicient to receive a fuel feed 15 casing, the face of said flanges constituting the free end thereof being angularly disposed with respect'to the surface of said annular plate like member and bosses having threaded openings therein-formed with and extending outwardly 20 from said annular. member within said walled holloyr flanges.

6. As an article of manufacture, a frame for a firing opening comprising an annular plate like member, a curved flange, extending outwardly 25 from one face of said annularmember along a portion of the inner marginal edge of said annular member, a walledhollow flange extending outwardly from said annular member adjacent each of the extremities of said curved flange, said walled hollow flanges being spaced apart a distance sufficient to receive -a fuel feed casing and an annular. convex flange extending outwardly from the other faceof said annular member along its inner marginal edge.

7'. As an article of manufacture, a frame for a firing opening comprising an annular plate like member, av curved. flange extending outwardly fr-omone face of said annular member along a portion of the inner marginal edge of said annular member, a walled hollow flange extending outwardly from said annular member adjacent each of the extremities of said curved flange, said walled hollow flanges being spaced apart a distance sufiicient to receive a fuel feed casing, the face of said last named flanges constituting the free end thereof being angularly disposed with respect to the surface of saidannular plate like member and an annular. convex flange extending outwardlyfrom the other face of said annular member along its inner marginal edge.

8."In combination with afirebox having a backwall with a firing opening therein, a curvate plate like member rigidly secured to said backwall in approximate register with saidfiring opening, spacedflanges extending outwardly from the lower half of the curvate member, a stoker discharge casing communicating with the lower half of the opening in said curvate member, said discharge casing having laterally extending 0 flanges at its forward end. abutting the flanges on said curvate member and means extending through said flanges for rigidly securing said casing to said curvate member.

9.- In combination-with. a firebox having a backwall with a firing opening therein, a stoker com prising a discharge casing communicating with said firing opening, said casing having flanges extending laterally therefrom adjacent its discharge end, a curvate plate like member rigidly secured to the firebox backwall in approximate register with said firing opening, said .curvate member carrying on its lower half spaced flanges extending outwardlytherefrom and arranged to abut curing said flanges together, the upper half of said curvate member carrying on its inner marginal edge an outwardly extending flange; and a door secured from said curvate member and arranged to form a closure for the opening described by the outer edge of said last named flange and the upper forward edge of the said discharge'casing.

10. In combination with a firebox having a backwall with a firing opening therein, an annular plate like member rigidly secured to said backwall in approximate register 'with said firing opening, a pair of spaced flanges extending outwardly from said annular member adjacent the lower inner marginal edge thereof, the surface of said flanges at their outer ends being angularly disposed with respectto the surface of said annular member, a stoker discharge casing communicating with the lower half of the opening in said annular member, said discharge casing having laterally extending flanges at its forward end abutting said spaced flanges, means extending through said abutting flanges for rigidly securing said casing to said annular member and a firedoor carried by the annular member and arranged to form a closure for the upper half of the opening in said annular member.

11. In combination with a firebox having a backwall with a firing opening therein, an annular plate like member rigidly secured to said backwall in approximate register with said firing opening, a pair of spaced flanges extending outwardly from said annular member adjacent the lower inner marginal edge thereof, the surface of said flanges at their outer ends being angularly disposed with respect to the surface of said annular member, a stoker discharge casing communicating with the lower half of the opening insaid annular member, said discharge casing having laterally extending flanges at its forward end abutting said spaced flanges, means extending through said abutting flanges for rigidly securing said casing to said annular member, a flange extending outwardly from the inner marginal edge of the upper portion of the opening in said annular member, and a firedoor secured from said annular member and arranged to form a closure for the opening described by the outer edge of said last named flange and the upper forward edge of the discharge casing.

12. In combination with a firebox having a backwall including an inner and an outer sheet with a firing opening therethrough, an annular plate like member rigidly secured to the outer sheet of said backwall in approximate register with said firing opening, an annular convex flange formed with said annular member and extending outwardly from the inner marginal edge of the opening therein, said flange at its free end being rigidly secured to the inner sheet of said backwall and forming the walls of said firing opening, spaced flanges ext-ending outwardly from the lower half of the annular member in the opposite direction from said annular convex flange, a stoker discharge casing communicating with the lower half of the opening in said annular member, said discharge casing having laterally extending flanges at its forward end butting said spaced flanges, means extending through said spaced flanges and said casing flanges for rigidly securing said casing to said annular member and a firedoor carried by the annular member and arranged to form a closure for the upper half of the opening in said annular member.

13. In combination with aflrebox having a backwall including an inner and an outer sheet with afiring opening therethrough, an annular-plate -like member rigidly. secured' to the outer. sheet of said backwall in approximate register with said firing opening;van annular convex flange formed with said annular member and extending out-,-,

wardly from the inner marginal edge of the opening therein, said flange at its free end-being rigidly secured to the inner sheet of said backwall and forming the walls of said firing opening, spaced flanges extending outwardly fromthe lower half lo half of the opening in said annular memben'said discharge casing having laterally extending,

flanges at its forward-end abutting said spaced vflanges, means extending-through said spaced flanges and said casing flanges for rigidly securing said casing to said annular member, a curved flange extending outwardly in the same direction as said spaced flanges from the inner marginal edge of the upper half of the annular member and a firedoor secured from said annular member and arranged to form a closure for the opening described by the outer edge of said curved flange and the upper forward edge of said discharge casing.

14. In combination with a firebox having a backwall including an inner and an outer sheet with a firing opening therethrough, an annular plate like member rigidly secured to the outer sheet of said backwall in approximate register with said firing opening, an annular convex flange formed with said annular member and extending outwardly from the inner marginal edge of the opening therein, said flange at its free end being rigidly secured to the inner sheet of said backwall and forming the walls of said firing opening, spaced flanges extending outwardly from the lower half of the annular member in the opposite direction from said annular convex flange, the outer faces of said spaced flanges being angularly disposed with respect to the surface of said annular member, a stoker discharge casing communicating with the lower half of the opening in said annular member, said discharge casing having laterally extending flanges at its forward end abutting said spaced flanges, means extending through said spaced flanges and said casing flanges for rigidly securing said casing to said annular member and a firedoor carried by the annular member and arranged to form a closure for the upper half of the opening in said annular member.

15. As an article of manufacture, a frame for a firing opening comprising a curvate platelike member, a curved flange extending outwardly from the face of said member adjacent a portion of its inner marginal edge, a flange at each end of said curved flange extending outwardly from the face of said curvate member, the plane of the free edges of said last named flanges being angularly disposed with respect to the plane of the face of said curvate member.

16. As an article of manufacture, a frame for a firing opening comprising a curvate plate-like member, flanged members extending outwardly from the face of said curvate member and spaced apart a distance suflicient to receive a fuel feed casing, the plane of the free edges of said flanged members being angularly disposed with respectto the plane of the face of said curvate member.

17. As anarticle of manufacture, a frame for a firing opening comprising an annular platelike member, a curved flange extending outwardly from one face of said member adjacent a portion 1; of -sits; inner: marginabedge, aiflangeat each end .of said; curved flange. extending outwardly from ;'the.;same: face otsaid member andian annular convex flange extending; outwardly from theother .zfaces of- ;saidcannu-1ar; member-adj acent. its; inner -.marginal edge.

7185As anjarticleof manufacture, a frame for a :firing opening. comprisingqan annular. plate-like member," av curved 'flangeextending outwardly -from.one faceof said memberladjacentia. portion ofi'its inner-marginal edge,a flange-at each end soft: said curved flange extending outwardly .from the: same; face of saidmember, .the: planecofzthe free. edges. of said last. named'flanges beingnan :.19: Imcombination with: a'fireboxhaving a backwall awithafiring opening therein, .a stoker com- ::prising :a; discharge. casingcommunicating with csaidyfiringopening, a curvateeplate-likemember :rigidly: secured to?- saidacbackwall. in approximate :registerrwith the'firing' opening, a curved flange extending outwardly "from: the: face of the upper 1: portion; ofavsaid-r curvate memberfflanged memabersx extending toutwardly fromvzthe' face of the -.]ower-portion:of said curvate member and spaced apart; a. distance sufficient to receive said .dis- -charge casingyandaszdoor secured from said curvate'zmembenand arranged to form a closure .forethe openingxdescribedzby the outer edge of isaid':firstrnamedvflange' andthe upper forwardwedge ofathe discharge casing .L'HOWARD P. ANDERSON. 

